Out of Stock - No Customer Service

I requested for my upgrade in January for a Sony Z3, and had to wait a period of 2 weeks after being told that I would only have to wait a week. I then went back to the store to see if perhaps any stock had arrived. To my surprise, they had received stock, but only in black, i requested a white, but nobody bothered to advise of the stock received so as to make a choice. I then changed the option of waiting for a white Sony Z3 to a Samsung Note4, but that didnt help either, February is almost over and I am still waiting. All other service providers have these handsets, but seems Mtn is the exception. What upsets me most, is that there is absolutely NO customer service. No body has bothered to call to give updates or advise on what is happening, I as the customer am constantly going to the store to find out if stock has been received. This is completely unacceptable and I am almost tempted to move my contract to another service provider.<br> <br>